/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */


import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Yongke
 */
@WebServlet(name="chatfriend", urlPatterns={"/chatfriend"})
public class chatfriend extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String Friend = request.getParameter("friend");
        HttpSession session = request.getSession();
        String uname = session.getAttribute("username").toString();
        try {
            out.println("<body>");
            out.println("<form method='post' action=\"javascript:sendChatFriendjs('" + Friend+ "')\">");;
            out.println("<input type='text' name='textfriend' id='textfriend' />");
            out.println("<input type='submit' value='chat'/>");
            out.println("<a href=\"javascript:getchatFriend('" + Friend+ "')\"> Refresh </a>");
            out.println("<input type='hidden' name='receiver' id ='receiver' value='"+request.getParameter("friend")+"' />");
            out.println("<input type='hidden' name='room' id ='room' value='' />");
            out.println("<input type='hidden' name='me' id='me' value='"+session.getAttribute("username")+"' />");
            out.println("<form>");
            out.println("You are in room chat with " +Friend);
            out.println("</body>");
        } finally { 
            out.close();
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
